Fire was the visible, highly exothermic reaction between combustible fuel and oxygen at extremely high temperatures. It usually appeared as orange or yellow glowing 'tongues' of erratically rising gas, but could be other colors depending on the chemical being burned and the completeness of the combustion. While its intense heat could cause physical damage, fire was an important part of many cultures and religions from ancient to modern times.

In the Sith culture, fire was often used to symbolize the vivid hate or passion. LordKopecz once used fire as a symbol for the power of the dark side of the Force, burning like anger with the heat of passion and emotion.[3] In other cases, fire was considered a purifying substance. Rajivari's apprentices were known to be flawed, but once they "walked the fire", they were considered to be pure. Sacrificing oneself to the flames was considered a demonstration of resolve and strength.[9] On the contrary, the Yuuzhan Vong considered fire to be an abomination.[10]

Sometimes, large campfires known as "bonfires" would be built as part of a celebration. The Whiphids from Toola used to roast the remains of snow demons, and the young ones danced around them while the elders played the claw harps.[4]